Water cooler



E. B. CUSHMAN.

WATER 000m.

APPLICATION FILEDJAK- I21 192].

Patented Jan. 17, 1922.

INVENTOR WT y W1,

" ATTORNEYS UNITED smi es PATENT OFFICE.

EVERETT B. oUs M'AN, or "ror A. KANSAS, ASSIGNOR 'ro BEAN SPRAY PUMP00., OF SAN JOSE, CALIFORNIA, A CORPORATION or CALIFORNIA.

WATER COOLER.

Specification of Letters Patent.

Patented Jan. 17, 1922.

Application filed January 12, 1921. Serial No. 436,641.

To all whom it may "concern Be it known that I, Evnnnrr B. CUsHMAN, acitizen of the United States, residing at Topeka, in the county ofShawnee and State of Kansas, have invented certain new and usefulImprovements in Water Coolers, of which the following is aspecification.

My invention relates to the class of water coolers, and particularly tothat type in which a radiator is associated with a flywheel and isexposed to a current" of air induced by the: rotation of said wheel.ater coolers of this type are especially adapted for the cooling systemsof internal combustion engines, and in this connection I shall hereinillustrate and describe my invention though it will be understood thatit is not necessarily confined to this use.

Th'e'obj'ect of my invention is to provide a simple and eflicient watercooler of this type; and to this end, my invention consists in the novelwater cooler which I shall now fully describe by reference to thea'ccompairving drawings, in which-- Fig. 1 is a part sectional sideelevation of my engine, showing the position of the radiator and thearrangement of the cooling system.

Fig. 2 is a part sectional rear elevation of the radiator andfiy-wh'eel, taken in the direction of the arrows on the line 2-2 of Fig. 1.

Fig. 3 is a vertical section, enlarged, of a portion of the radiator.

In the drawings and referring particularly to Fig. 1 thereof, thereference numeral 1 designates the base or crank-case of an engine, fromwhich projects a crankshaft 2 carrying a fly-wheel 3. l designates theengine cylinder, and 5 the head thereof. It is to be understood thatsaid crank-case, shaft, and cylinder may be formed in any well-knownmanner, and further that the other usual parts, viz. piston, connectingrod, valve gear, etc., not shown in the drawings, may be mounted andconstructed in any manner consistent with customary practise.

The cylinder 4 is surrounded, wholly or in part, by a jacket 6, forwater or other cooling fluid, which communicates by a series ofopenings, one of which is shown at 7, with a water chamber 8 formed inthe cylinder-head 5. Said chamber 8 is relatively large, as shown, andforms a convenient reservoir for containing a supply of the coohngfluid, in addition to providing a cooling jacket for the head 5. Aremovable cover plate 9 provides access to said reservoir for cleaning.A water pump 10 is suitably mounted on the engine base 1, and has itsintake connected with the reservoir 8 by a conduit 11.

The fly-wheel 3 has an apertured web 12, as shown in Figs. 1 and 2, andan ofi-set rim 13, in which is formed a series of fan blades 1&. Astationary radiator 15 is mounted within the off-set rim of saidflywheel, and is provided with water inlet and outlet connections 16 and17 respectively. Said radiator is supported by said connections, whichhave studs 18 secured to upper and lower arms of a fixed bracket 19.Fig. 1, secured to and projecting laterally from the engine base 1. Adrain aperture 20 is formed in the inlet connection 16, which may beclosed by any convenient means, not shown. and which, being at thelowest point in the water circulating system, provides means fordraining the water therefrom. The radiator inlet connection 16 isconnected by a conduit 21 with the discharge connection of the pump 10,and the radiator outlet connection 17 is connected by a conduit 22 withthe lower portion of the cylinder jacket 6.

The radiator 15 comprises a series of laterally spaced annular chambers23, Figs. 1 and 3, each of which is formed by joining together twosimilar but oppositely positioned annular plates 24, Fig. 3, whoseperipheral edges are upset and flanged, as shown at 25, and joinedtogether, preferably by soldering, as at 26. The annular plates 2 1 areformed with diametrically opposite flanged apertures 27 and 28, theinterior diameter of the apertures 27 being the same as the exteriordiameter of the apertures 28, so that the flanges of the apertures ofadjacent plates telescope and may be joined together, preferably bysoldering, as shown at 29.

By this construction I am enabled to form the entire radiator of aseries of identical members, viz. the plates 24, one of the two platesforming each chamber being reversed and rotated 180 degrees with respectto the other, so that the larger'aperture 27 of one plate is alignedwith the smaller aperture 28 of the other. These plates can be easilyand cheaply formed, by stamping, from rela- Cit tively thin sheet metal,so that the entire radiator structure is both light and inexpensive. Theplate forming the back ofthe radiator is blank, without apertures, andthe front plate has the supporting inlet and outlet connections 16 and17 secured to it in any convenient manner, as by soldering and riveting.

The blades 14: in the rim of the fly-wheel cause a current of air to bedrawn in axially to the center of the radiator, and then radiallyoutwardly between the spaced chambers 23, while the water, enteringthrough the bottom connection 16, flows upwardly through said chambersand out by the upper connection 17, giving up its heat to the walls ofsaid chambers in passing therethrough. The fly-wheel thus acts as a fanto set up a current of air over the radiating surfaces, and at the sametime as a protectlon to prevent injury to the radiator.

' My invention has been herein described and is herewith illustrated inits preferred form, but it is to be understood that changes may be madein its form and construction,

within the scope of the claims hereto ap-c pended, without affecting theessentials of the invention or departing in any degree from the spiritthereof.

I claim 1. A water-cooling means comprising a -fly wheel having anapertured web and an offset apertured rim with a series of spacedfan-blades; and a stationary radiator lying -within the spacecircumscribed by the offset rim of the fly-wheeland exposed to a currentof air drawn in centrally of the radiator and exhausted through the'apertured rim of said fly-wheel.

2. A water-cooling means comprising a fly-wheel having an offsetapertured rim with a series of spaced fan-blades; and a stationaryradiator lying within the space c'ircumscribed by the offset rim of thefly wheel and exposed to a current of air drawn in centrally of theradiator and exhausted through the apertured rim of the fly-wheel. 3;water-cooling means comprising a fly wheel having an offset aperturedrim bers, said plates lying within the space circumscribed by the offsetrim of the flywheel, and exposed to a current of air drawn in centrallyof the radiator and exhausted throu 'h the apertured rim of saidfly-wheel.

4. K water-cooling means comprising a fly-wheel having an ofiisetapertured I and fan-bladed rim; and a stationary radiator lying withinthe space circumscribed by the offset rim of said fly-wheel and composedof a series of similar circular plates, each plate having peripheralflanges on one face and a pair of diametrically opposite flangedapertures in the other face, the interior diameter of the flange of oneaperture being equal to the exterior diameter of the flan e of'the otheraperture, and said plates ein arranged in pairs, one plate of each paireing reversed and rotated 180 degrees with respect to the other, theadjacent peripheral flanges of said plates being joinedto form awater-tight chambertherebetween and the aperture flanges of each pair ofplates being telescoped into and joined with those of the adjacent pairto form water connections between said chambers.

In testimony whereof I have signed my name to this specification.

EVERETT B. CUSHMAN.

